/* ============================================
   DESIGN TOKENS V2 - MODERN DARK / GLASSMORPHISM
   Palette: Slate/Zinc Base + Neon Accents
   ============================================ */

:root {
    /* ===== PALETTE (Dark Mode Default) ===== */
    /* Backgrounds */
    --bg-app: #0f172a;
    /* Slate 900 - Deep Background */
    --bg-panel: rgba(30, 41, 59, 0.7);
    /* Slate 800 - Glass Panel */
    --bg-surface: rgba(51, 65, 85, 0.5);
    /* Slate 700 - Lighter Surface */
    --bg-input: rgba(15, 23, 42, 0.6);
    /* Dark Input Background */

    /* Glass Effects */
    --glass-border: 1px solid rgba(255, 255, 255, 0.08);
    --glass-highlight: 1px solid rgba(255, 255, 255, 0.15);
    --glass-blur: blur(16px);
    --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.36);

    /* Primary Accents (Neon Indigo/Violet) */
    --primary: #6366f1;
    /* Indigo 500 */
    --primary-glow: rgba(99, 102, 241, 0.5);
    --primary-hover: #818cf8;
    /* Indigo 400 */

    --secondary: #a855f7;
    /* Purple 500 */
    --secondary-glow: rgba(168, 85, 247, 0.5);

    --accent: #06b6d4;
    /* Cyan 500 - For highlights */

    /* Functional Colors */
    --success: #22c55e;
    /* Green 500 */
    --warning: #f59e0b;
    /* Amber 500 */
    --danger: #ef4444;
    /* Red 500 */
    --info: #3b82f6;
    /* Blue 500 */

    /* Typography */
    --text-main: #f1f5f9;
    /* Slate 100 - High Contrast */
    --text-primary: #f1f5f9;
    /* Alias for --text-main */
    --text-secondary: #94a3b8;
    /* Slate 400 - Muted */
    --text-tertiary: #64748b;
    /* Slate 500 - De-emphasized */

    /* Theme-adaptive input colors */
    --input-bg: rgba(15, 23, 42, 0.6);
    --input-text: #f1f5f9;
    --input-border: #475569;

    /* Spacing & Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-pill: 9999px;

    /* Variable Bridge (Legacy V1 to V2) */
    --color-primary: var(--primary);
    --color-primary-hover: var(--primary-hover);
    --color-bg-base: var(--bg-app);
    --color-bg-elevated: var(--bg-panel);
    --color-input-bg: var(--input-bg);
    --color-input-text: var(--input-text);
    --color-border: var(--input-border);
    --color-text-primary: var(--text-main);
    --color-text-secondary: var(--text-secondary);
    --color-success: var(--success);
    --color-warning: var(--warning);
    --color-danger: var(--danger);
    --color-info: var(--info);

    /* Shadows (Colored Glows) */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 25px -5px rgba(0, 0, 0, 0.4);
    --shadow-glow-primary: 0 0 15px var(--primary-glow);
    --shadow-glow-secondary: 0 0 15px var(--secondary-glow);

    /* Transitions */
    --ease-elastic: cubic-bezier(0.68, -0.55, 0.265, 1.55);
    --ease-smooth: cubic-bezier(0.4, 0, 0.2, 1);
    --duration-fast: 150ms;
    --duration-normal: 300ms;
    --duration-slow: 500ms;
}

/* ===== LIGHT MODE OVERRIDES ===== */
:root.light-mode,
body.light-mode {
    --bg-app: #f1f5f9;
    /* Slate 100 */
    --bg-panel: rgba(255, 255, 255, 0.85);
    --bg-surface: rgba(241, 245, 249, 0.8);
    --bg-input: rgba(255, 255, 255, 0.9);

    --glass-border: 1px solid rgba(0, 0, 0, 0.08);
    --glass-highlight: 1px solid rgba(0, 0, 0, 0.12);
    --glass-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.08);

    --text-main: #0f172a;
    /* Slate 900 */
    --text-primary: #0f172a;
    --text-secondary: #475569;
    /* Slate 600 */
    --text-tertiary: #64748b;
    /* Slate 500 */

    --input-bg: #ffffff;
    --input-text: #0f172a;
    --input-border: #cbd5e1;

    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 10px 25px -5px rgba(0, 0, 0, 0.1);
}